Abstract:With the acceleration of urban economic development at this stage, the hardening area increases year by year in the construction of urban roads, which leads to the reduction of urban permeable surface, is likely to cause the urban waterlogging and other disasters during the rainy season, and will bring many problems to the urban development and residents' lives. In order to reduce the occurrence of urban waterlogging and other problems, in the process of urban road cross-section planning and design, combined with the construction concept of sponge city, the corresponding design methods are proposed to guide the engineering application. The design goals of the sponge-type urban roads are clarified. The features of various LID measures in terms of function, control goals, economy, impact on surrounding plots, and landscape effects are analyzed. The cross section design methods of the roads with the red line widths of 12~15 m, 20~28 m, 34~40 m and above 40 m are expounded.
